Find f'(x) for y = (x+5 / x+1) (2x+1)

I don't know how to proceed here. Do I use the quotient rule inside the first brackets? Then what?

Printable View

- Dec 6th 2009, 08:33 AMArchduke01Derivatives involving both product/quotient rule
Find f'(x) for y = (x+5 / x+1) (2x+1)

I don't know how to proceed here. Do I use the quotient rule inside the first brackets? Then what? - Dec 6th 2009, 08:43 AMlvleph
First thing you can do is use the product rule

.

From here we can take the derivative using the quotient rule on .

Combine this with the previous result

.

Now simplify. - Dec 6th 2009, 08:51 AMArchduke01
- Dec 6th 2009, 09:10 AMlvleph
Yes, that is what www.wolframalpha.com gives.